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The top United States transportation official has said work being performed on an antiquated telecommunications system could be to blame for a rare, hours-long US Federal Aviation Administration (FAA) ground stop that halted all air traffic inside the country. At a news conference in Washington, DC, on Saturday, US Transportation Secretary Sean Duffy spoke about routine maintenance that was performed on Friday to upgrade a router from copper to fibre at a “very remote location”. Duffy said “contractor error or a faulty piece of equipment” caused the router in question to start flooding other ones in the country’s air traffic control system.
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